| After the age of about forty you will experience
a problem viewing small print and tasks involving close detail work. This eye condition is called presbyopia and magnification is the answer.
What Is Stand Magnifier? A stand magnifier consists of a magnifying lens mounted to a base or clamp
on device. The
advantage of a large magnifying glass on stand is that it is hands free for reading
or performing close up work. Our hands free stand magnifying glass will allow reading or close work tasks for a long
periods of time . For best magnifying glass with stand results wear your glasses.
Do I need a stand magnifier with light? A stand magnifier with light or magnifying glass on stand with light will provide better
magnification results as they provide a sharper and clearer image. Our magnifiers are led or fluorescent
lighted and provide a soft white light to ease eye fatigue What power
stand magnifier should I choose? Select a magnifier with a
power that will allow a comfortable work or reading distance.The higher the power the shorter the work
distance and the smaller the field of view. The high power magnifying glass may not be the best magnifier
for you How does a magnifying glass work? A magnifying glass is a lens which can be used to make things appear bigger, so
you can see them better. It is used in many applications and manual operations. The
magnifying glass consists of a piece of convex[ shaped glass or plastic. It has to be held at the right distance between the eye and the object for the object
to be in focus.
Wikipedia Types Of Magnifying
Glass On Stand: Desktop/Tabletop Stand Magnifier Magnifying Lamps Full Page Stand Magnifier Free Standing Magnifier
. Diopter | Power | Focal Length | 3 | 1.75X | 13 inches | 5 | 2.25X | 8 inches | 8 | 3.00 | 5
inches |
Does not apply to Fresnel Lens magnifiers which have a focal range of 4 inches.
Information On Fresnel Full Page Stand Magnifier.A full page magnifying glass consists of a large Fresnel lens that allows for reading of a whole page. The advantage of a hands free
page magnifier is that it can be used as a whole page magnifier. What
is a Fresnel magnifier?
A Fresnel magnifier consists of a flat plastic lens with concentric grooves that permits
magnified viewing. The focal length is about 4
inches from the object to be viewed.
Our large magnifier selection can help those with presbyopia and macular degeneration . Field Of View: The size of the area being magnified when viewing through a magnifying lens. The higher the power of the magnifier
the smaller the field of view. Diopter: Diopter is a measurement that is used to calculate the power of a magnifying lens. The higher diopter will
provide higher magnification. Diopter is expressed as "D" Power: Power is how large an object or print increases as you look through a lens. Magnifying power is expressed as "X" Focal Length:
Measurement
from the center of the lens to to the object and be in focus . Focal Range: The distance from the magnifying lens to the object being viewed.
Fresnel Magnifier: A flat magnifier consisting of concentric circles that can be a full page reading magnifier. Visual impairment (or vision impairment) is a decreased ability to see to a degree that causes
problems not fixable by usual means, such as glasses or medication. Our low vision magnifiers can be of help. Rules Of Magnification. - The higher the power
of the lens, the closer you must get to the object being viewed and the smaller the field of view.
- As the power of a lens
increases the diameter of the lens decreases.
- Diopter is a term used to determine the power(magnification}of a lens. The terms are
sometimes confused.
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Links The American Foundation for the Blind The National Federation of the Blind Bookshare National Library Service for the Blind and Physically Handicapped Paths To Literacy Classroom National Eye Institute Optometry Cares American Action Fund for Blind Children & Adults MD Support National Eye Health Education Program | 
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